diff --git a/book/confidenceIntervals.ipynb b/book/confidenceIntervals.ipynb
index 58b60a8..0e44085 100644
--- a/book/confidenceIntervals.ipynb
+++ b/book/confidenceIntervals.ipynb
@@ -2891,7 +2891,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -2905,7 +2905,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.5"
+   "version": "3.12.2"
   }
  },
  "nbformat": 4,
diff --git a/book/images/ch9/MeasuredPValue.png b/book/images/ch9/MeasuredPValue.png
new file mode 100644
index 0000000..d72064d
Binary files /dev/null and b/book/images/ch9/MeasuredPValue.png differ